Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
The transition into October involves a small decrease in the average high-temperature, dipping slightly from a moderately hot 82.9°F (28.3°C) in September to a still warm 75.2°F (24°C). Sullivan's Island's average low-temperature during October nights is observed to be a refreshing 64.9°F (18.3°C).Humidity
In October, the average relative humidity in Sullivan's Island is 74%.Rainfall
In October, in Sullivan's Island, the rain falls for 11.7 days. Throughout October, 3.23" (82mm) of precipitation is accumulated. Throughout the year, in Sullivan's Island, there are 182 rainfall days, and 45.55" (1157mm) of precipitation is accumulated.Snowfall
In Sullivan's Island, South Carolina, snow does not fall in March through December.Daylight
In Sullivan's Island, the average length of the day in October is 11h and 22min.On the first day of the month, sunrise is at 7:13 am and sunset at 7:03 pm. On the last day of October, in Sullivan's Island, sunrise is at 7:36 am and sunset at 6:29 pm EDT.
Sunshine
In October, the average sunshine is 6.7h.UV index
In Sullivan's Island, South Carolina, the average daily maximum UV index in October is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A typical high UV index of 5 in October suggests the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Frequently asked questions
What is the average October temperature in Sullivan's Island?
What is the average humidity in October in Sullivan's Island?
How many days does it rain in October in Sullivan's Island?
When it does not snow in Sullivan's Island?
How many hours of daylight does Sullivan's Island have in October?
What time are sunrise and sunset in October in Sullivan's Island?
How long on average sun shines in October in Sullivan's Island?
How high is the UV index in October in Sullivan's Island?
Average temperature in October
Sullivan's Island, SC
- Average high temperature in October: 75.2°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (57°F).
- Average low temperature in October: 64.9°F
The month with the highest average low temperature is July (78.3°F).
The coldest month (with the lowest average low temperature) is January (45.5°F).
Average pressure in October
Sullivan's Island, SC
- Average pressure in October: 30.02"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in October
Sullivan's Island, SC
- Average wind speed in October: 9.5mph
The windiest months (with the highest average wind speed) are March and April (10.3mph).
The calmest month (with the lowest average wind speed) is August (8.4mph).
Average humidity in October
Sullivan's Island, SC
- Average humidity in October: 74%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are January and March (73%).
Average rainfall in October
Sullivan's Island, SC
- Average rainfall in October: 3.23"
The wettest month (with the highest rainfall) is August (8.23").
The driest month (with the least rainfall) is January (1.42").
Average rainfall days in October
Sullivan's Island, SC
- Average rainfall days in October: 11.7 days
The month with the highest number of rainy days is August (25.9 days).
The month with the least rainy days is November (8.5 days).
Average snowfall days in October
Sullivan's Island, SC
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in October /
Average sunshine in October
Sullivan's Island, SC
- Average daylight in October: 11h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in October: 6h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in October
Sullivan's Island, SC
- Average sunshine days in October: 18.1 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is August (2.8 days).
Average UV index in October
Sullivan's Island, SC
- Average UV index in October: 5
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in October
Sullivan's Island, SC
- Average cloud cover in October: 27
The month with the most cloud cover is December (Cloud cover 39).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in October
Sullivan's Island, SC
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Sullivan's Island, South Carolina, USA
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